/Engine/Source/Runtime/Online/BuildPatchServices/Public/Interfaces/IBuildPatchServicesModule.h
Takes two manifests as input, in order to merge together producing a new manifest containing all files. NOTE: THIS function is blocking and will not return until finished. Don't run on main thread.
true if successful.
bool MergeManifests ( const [FString](API\Runtime\Core\Containers\FString) & ManifestFilePathA, const [FString](API\Runtime\Core\Containers\FString) & ManifestFilePathB, const [FString](API\Runtime\Core\Containers\FString) & ManifestFilePathC, const [FString](API\Runtime\Core\Containers\FString) & NewVersionString, const [FString](API\Runtime\Core\Containers\FString) & SelectionDetailFilePath )